/* Opskill - OpenClaw Guide Stylesheet */
:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --accent: #f093fb;
    --text: #1a202c;
    --text-light: #4a5568;
    --bg: #ffffff;
    --bg-light: #f7fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-lang a {
    background: var(--bg-light);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 20px 60px;
    color: white;
    gap: 60px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero .highlight {
    background: linear-gradient(120deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 100%);
    padding: 0 10px;
    border-radius: 8px;
}

.hero-desc {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.btn {
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: white;
    color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
}

.stat-label {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Code Window */
.hero-code {
    flex: 1;
    max-width: 500px;
}

.code-window {
    background: #1e1e1e;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.code-header {
    background: #2d2d2d;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.code-title {
    margin-left: 10px;
    color: #888;
    font-size: 0.85rem;
}

.code-content {
    padding: 20px;
    color: #d4d4d4;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content .prompt {
    color: #27c93f;
    margin-right: 8px;
}

/* Features Section */
.features {
    padding: 100px 20px;
    background: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* Use Cases */
.use-cases {
    padding: 100px 20px;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.use-case {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 16px;
    border: 2px solid var(--border);
    transition: border-color 0.3s;
}

.use-case:hover {
    border-color: var(--primary);
}

.use-case-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.use-case h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.use-case p {
    color: var(--text-light);
}

/* Quick Links */
.quick-links {
    padding: 100px 20px;
    background: var(--bg-light);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.quick-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    background: white;
    border-radius: 12px;
    text-decoration: none;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.quick-link:hover {
    transform: translateX(10px);
}

.quick-link-icon {
    font-size: 2rem;
}

.quick-link-text {
    font-weight: 600;
    color: var(--text);
}

.quick-link-desc {
    margin-left: auto;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Community */
.community {
    padding: 100px 20px;
    text-align: center;
}

.community-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.community-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: var(--bg-light);
    border-radius: 50px;
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: all 0.3s;
}

.community-link:hover {
    background: var(--primary);
    color: white;
}

.community-icon {
    font-size: 1.5rem;
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 60px 20px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #2d3748;
    color: #a0aec0;
}

.footer-bottom a {
    color: #a0aec0;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-code {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}